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KLH Audiohttps://klhaudio.com > uploads > 2020/12 > Wi...
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You can experiment with different configurations, or even add multiple subwoofers to your system (see diagram). 1. 3. 2. CONNECTING YOUR. SUBWOOFER. Ensure that ...
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After acquiring a fried KLH ASW10-120, I write to the tech folks at KLH and they sent me the upper and lower board schematics. I asked if I could publish them online, and explicitly asked if I could share them on FixYa.com, and they gave me permission to do just that.
Without knowing what they're hooked up too.. SOUNDS like your uder powering them, OR over powering them. Look at the back of the speakers the wattage is what your looking for, look at your amp, example: 1000w speaker running on 50w amp = not good.
I would check the caps on the power supply. They are rather large electrolytic capacitors that will look like they burst and/or leaking. When these die, the caps ground and the sub will make a loud buzzing sound. If you are handy with a soldering iron you can replace them yourself. Replace them with the same voltage or a little bigger and same with the size.
If the cap. says 16v 4700pF on it, for example, a 20v 5300pF or a 16v 6200mF cap. will work for this application.
Yes, the 10-120 can use a L & R low level subwoofer input. You can get a short 6" RCA splitter adapter from Radio Shack for a under $10. (1 female input, 2 male outputs) Alternately, just plug the subwoofer output on your receiver to just the low level R channel on the KLH sub.
Run your front channel speaker wires to the CLEARLY-MARKED connectors on the sub and daisy-chain your front speakers to the CLEARLY-MARKED connectors on the sub.
Adjust the sub volume to match the front speakers levels. This will give you local volume control at the Sony.
I wrote to KLH and they sent me the schematics for the upper and lower boards. I asked if I could share them, and they gave me permission to post them for use here.
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